my nissan altima 1998 model is newly tuned up but the service engine soon light still appears.the light appears a day ago and we tuned up the engine right after.
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1998 Nissan Altima Question: how to remove or reset the service engine soon light?
Answer #1ZeeTech January 10, 2011, 18:49Master
It does not mean the car needs a maintenance service, but there is an engine or emission control problem is registered into the engine control module, it has to be diagnosed by a diagnostic computer and repaired accordingly. After the repair the ECM's memory and adaptation has to be reset.